Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quem são os principais palestrantes no campo da IA ética e quais são os títulos de suas palestras mais populares?
 ###Tabelas: 
CREATE TABLE speakers (id INT PRIMARY KEY, name VARCHAR(255), affiliation VARCHAR(255), country VARCHAR(255)); INSERT INTO speakers (id, name, affiliation, country) VALUES (1, 'Dr. Joy Buolamwini', 'MIT Media Lab', 'USA'); INSERT INTO speakers (id, name, affiliation, country) VALUES (2, 'Prof. Virginia Dignum', 'Umeå University', 'Sweden'); INSERT INTO speakers (id, name, affiliation, country) VALUES (3, 'Dr. Rumman Chowdhury', 'Twitter', 'USA'); CREATE TABLE talks (id INT PRIMARY KEY, title VARCHAR(255), speaker_id INT, conference_id INT, date DATE); INSERT INTO talks (id, title, speaker_id, conference_id, date) VALUES (1, 'Algorithms of Oppression', 1, 1, '2022-06-02'); INSERT INTO talks (id, title, speaker_id, conference_id, date) VALUES (2, 'Ethics for AI in Healthcare', 1, 5, '2022-10-02'); INSERT INTO talks (id, title, speaker_id, conference_id, date) VALUES (3, 'Accountable AI Systems', 2, 4, '2022-09-02'); INSERT INTO talks (id, title, speaker_id, conference_id, date) VALUES (4, 'Responsible AI in Social Media', 3, 6, '2022-11-02'); CREATE TABLE conference_attendees (talk_id INT, attendees INT); INSERT INTO conference_attendees (talk_id, attendees) VALUES (1, 500); INSERT INTO conference_attendees (talk_id, attendees) VALUES (2, 700); INSERT INTO conference_attendees (talk_id, attendees) VALUES (3, 600); INSERT INTO conference_attendees (talk_id, attendees) VALUES (4, 800);
SELECT speakers.name, talks.title, MAX(attendees) as popular_talk_attendees FROM speakers JOIN talks ON speakers.id = talks.speaker_id JOIN conference_attendees ON talks.id = conference_attendees.talk_id WHERE talks.title LIKE '%ethical AI%' GROUP BY speakers.name, talks.title HAVING popular_talk_attendees = MAX(attendees);